<template>
  <!-- 轮播海报 -->
  <div class="bannerBar">
    <!-- 瀑布流展示海报 -->
    <div v-if="type=='waterfall'" class="preView" :id="widgetData.siteId">
      <!-- 热力图 -->
      <template v-for="(ele,idx) in mapData">
        <div v-if="ele.sitePageId == widgetData.siteId" :key="idx+'a'" class="mark" 
          :style="{background:`#${ele.color}`,opacity:0.9}">
          <div>
            <div class="name">PV：{{ele.exposurePv}}</div>
            <div class="name">UV：{{ele.exposureUv}}</div>
          </div>
          <div class="level">Lv.{{ele.level}}</div>
        </div>
      </template>
      <!-- 组件 -->
      <div v-if="widgetData.defaultImg!=''&&widgetData.siteId==bannerSiteCode"
        style="width:100%;height:100%">
        <img :src="widgetData.defaultImg">
      </div>
      <div v-else style="width:100%;height:100%">
        <img v-if="widgetData.value[0].url!=''" :src="widgetData.value[0].url">
        <div v-else class="image-null"><i class="el-icon-picture"></i></div>
      </div>
      <!-- 列表 -->
      <div class="list">
        <div class="overflow">
          <div class="imgList" :class="{Border:bannerSiteCode==item.siteId}" 
            v-for="(item,idx) in widgetData.value" :key="idx" @click="preView($event,item,idx,widgetData)">
            <img v-if="item.url && item.url !=''" :src="item.url" 
            :style="{width:bannerSiteCode==item.siteId?'44px':'48px',height:bannerSiteCode==item.siteId?'44px':'48px'}">
            <div v-else class="image-null"><i class="el-icon-picture"></i></div>
          </div>
        </div>
      </div>
    </div>
    
    <!-- 模板展示海报 -->
    <div v-else class="preView" >
      <div v-if="widgetData.defaultImg!=''" style="width:100%;height:100%">
        <img :src="widgetData.defaultImg">
      </div>
      <div v-else style="width:100%;height:100%">
        <div v-if="widgetData.value.length>0" style="width:100%;height:100%">
          <img v-if="widgetData.value[0].url!=''" :src="widgetData.value[0].url">
          <div v-else class="image-null"><i class="el-icon-picture"></i></div>
        </div>
        <div v-else style="width:100%;height:100%">
          <div class="image-null"><i class="el-icon-picture"></i></div>
        </div>
      </div>
      <!-- 列表 -->
      <div class="list">
        <div class="overflow">
          <div class="imgList" :class="{Border:bannerIndex==item.index}" 
            v-for="(item,idx) in widgetData.value" :key="idx" @click="preView($event,item,idx,widgetData)">
            <img v-if="item.url && item.url !=''" :src="item.url"
            :style="{width:bannerIndex==item.index?'44px':'48px',height:bannerIndex==item.index?'44px':'48px'}">
            <div v-else class="image-null"><i class="el-icon-picture"></i></div>
            <i v-if="!ispreview" class="el-icon-error" @click.stop="deleteItem(idx)"></i>
          </div>
          <div class="add" @click="addImg" v-if="!ispreview">
            <div class="image-null"><i class="el-icon-plus" style="font-size: 30px;"></i></div>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: "bannerBar",
  props: {
    type: {
      type: String,
      default: 'widget'
    },
    widgetData: {
      type: Object,
      required: true
    },
    bannerIndex:{//模板参数
      type: Number,
      default: 0
    },
    bannerSiteCode:{//瀑布流参数
      type: String,
      default: ''
    },
    // 热力图
    mapData:{
      type: Array,
      default: () => []
    },
    ispreview:{
      type:Boolean,
      default: false
    }
  },
  data () {
    return {}
  },
  methods: {
    // 添加
    addImg(){
      this.$emit('addImg');
    },
    // 预览
    preView(e,item,index,data){
      this.$emit('preView',e,item,index,data);
    },
    // 删除
    deleteItem(index){
      this.$emit('deleteItem',index);
    }
  },
}
</script>

<style lang="less" scoped>
.bannerBar {
  width: 100%;
  height: 100%;
  .preView{
    width: 100%;
    height: 100%;
    position: relative;
    // 热力图
    .mark{
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      padding: 10px 15px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      z-index: 9;
      .name{
        color: #ffffff;
      }
      .level{
        color: #ffffff;
        text-align: right;
      }
    }
  }
  img{
    width: 100%;
    height: 100%;
  }
  .image-null{
    background: #ffffff;
    width: 100%;
    height: 100%;
    font-size: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #c1c1c1;
  }
  .list{
    width: 100%;
    height: 60px;
    overflow-y: auto;
    background-color: rgba(29, 25, 25, 0.103);
    position: absolute;
    bottom: 0px;
    .overflow{
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: flex-start;
      flex-wrap:wrap;
    }
    .imgList{
      width: 48px;
      height: 48px;
      // border: 1px dashed #c1c1c1;
      margin: 5px 0px 5px 5px;
      position: relative;
      &:hover{
        .el-icon-error{
          display: block;
        }
      }
      .el-icon-error{
        position: absolute;
        right: -10px;
        top: -6px;
        color: red;
        font-size: 25px;
        cursor: pointer;
        display: none;
        z-index: 9999;
      }
    }
    .add{
      width: 48px;
      height: 48px;
      margin: 5px;
      background-color: rgba(0, 0, 0, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      border: 1px dashed blue;
    }
    // 选中样式
    .Border{
      border: 2px dashed rgb(0, 255, 0) !important;
    }
  }

  // 锚点定位
  .anchor{
    box-shadow: 1px 1px 10px 10px red;
  }
}
</style>

<style lang="less" scoped>
/*定义滚动条高宽及背景 高宽分别对应横竖滚动条的尺寸*/
::-webkit-scrollbar
{
  // width: 16px;  /*滚动条宽度*/
  // height: 16px;  /*滚动条高度*/
}  
 
/*定义滚动条轨道 内阴影+圆角*/
::-webkit-scrollbar-track
{
  // -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3);
  // border-radius: 10px;  /*滚动条的背景区域的圆角*/
  // background-color: red;/*滚动条的背景颜色*/
}  
 
/*定义滑块 内阴影+圆角*/
::-webkit-scrollbar-thumb
{
  // border-radius: 10px;  /*滚动条的圆角*/
  // -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,.3);
  background-color: red;  /*滚动条的背景颜色*/
}
</style>